c# – 使用XmlSerializer反序列表导致额外项目

我注意到XmlSerializer和通用列表(特别是List< int>)的奇怪行为.我想知道有没有人看过这个,或者知道发生了什么.看起来好像序列化工作正常,但是反序列化想要添加额外的项目到列表中.下面的代码演示了这个问题.

可序列化类：

public class ListTest
{
    public int[] Array { get; set; }
    public List<int> List { get; set; }

    public ListTest()
    {
        Array = new[] {1,2,3,4};
        List = new List<int>(Array);
    }
}

测试代码：

ListTest listTest = new ListTest();
Debug.WriteLine("Initial Array: {0}",(object)String.Join(",",listTest.Array));
Debug.WriteLine("Initial List: {0}",listTest.List));

XmlSerializer serializer = new XmlSerializer(typeof(ListTest));
StringBuilder xml = new StringBuilder();
using(TextWriter writer = new StringWriter(xml))
{
    serializer.Serialize(writer,listTest);
}

Debug.WriteLine("XML: {0}",(object)xml.ToString());

using(TextReader reader = new StringReader(xml.ToString()))
{
    listTest = (ListTest) serializer.Deserialize(reader);
}

Debug.WriteLine("Deserialized Array: {0}",listTest.Array));
Debug.WriteLine("Deserialized List: {0}",listTest.List));

调试输出：

Initial Array: 1,4
Initial List: 1,4

XML：

<?xml version="1.0" encoding="utf-16"?>
<ListTest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Array>
    <int>1</int>
    <int>2</int>
    <int>3</int>
    <int>4</int>
  </Array>
  <List>
    <int>1</int>
    <int>2</int>
    <int>3</int>
    <int>4</int>
  </List>
</ListTest>

Deserialized Array: 1,4
Deserialized List: 1,4,1,4

请注意,数组和列表似乎已经序列化为XML正确,但反序列化数组出来正确,但列表返回与一组重复的项目.有任何想法吗？

public class ListTest
{
    public int[] Array { get; set; }
    public List<int> List { get; set; }

    public ListTest()
    {

    }

    public void Init() 
    {
        Array = new[] { 1,4 };
        List = new List<int>(Array);
    }
}

ListTest listTest = new ListTest();
listTest.Init(); //manually call this to do the initial seed